| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <keymaster/km_openssl/triple_des_key.h> |
| |
| #include <assert.h> |
| |
| #include <openssl/err.h> |
| #include <openssl/rand.h> |
| |
| #include "triple_des_operation.h" |
| |
| namespace keymaster { |
| |
| static TripleDesOperationFactory encrypt_factory(KM_PURPOSE_ENCRYPT); |
| static TripleDesOperationFactory decrypt_factory(KM_PURPOSE_DECRYPT); |
| |
| OperationFactory* TripleDesKeyFactory::GetOperationFactory(keymaster_purpose_t purpose) const { |
| switch (purpose) { |
| case KM_PURPOSE_ENCRYPT: |
| return &encrypt_factory; |
| case KM_PURPOSE_DECRYPT: |
| return &decrypt_factory; |
| default: |
| return nullptr; |
| } |
| } |
| |
| keymaster_error_t TripleDesKeyFactory::LoadKey(KeymasterKeyBlob&& key_material, |
| const AuthorizationSet& /* additional_params */, |
| AuthorizationSet&& hw_enforced, |
| AuthorizationSet&& sw_enforced, |
| UniquePtr<Key>* key) const { |
| if (!key) return KM_ERROR_OUTPUT_PARAMETER_NULL; |
| |
| keymaster_error_t error = KM_ERROR_OK; |
| key->reset(new (std::nothrow) |
| TripleDesKey(move(key_material), move(hw_enforced), move(sw_enforced), this)); |
| if (!key->get()) error = KM_ERROR_MEMORY_ALLOCATION_FAILED; |
| return error; |
| } |
| |
| keymaster_error_t TripleDesKeyFactory::validate_algorithm_specific_new_key_params( |
| const AuthorizationSet& key_description) const { |
| if (key_description.Contains(TAG_MIN_MAC_LENGTH)) return KM_ERROR_INVALID_TAG; |
| return KM_ERROR_OK; |
| } |
| |
| } // namespace keymaster |